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Vessels catalogue (complete) - Juchheim Laborgeräte GmbH

Vessels catalogue (complete) - Juchheim Laborgeräte GmbH

Vessels catalogue (complete) - Juchheim Laborgeräte GmbH

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Stirrerheads<br />

‘O’ and oil film sealed stirrerhead<br />

• For use up to 350 °C<br />

• For vacuum and pressures up to 25 Bar<br />

• See pages 57–61 for description<br />

Lowest cost option for undemanding applications. It<br />

requires constant attention and, at higher pressures,<br />

frequent maintenance. The ‘O’ ring imposes a high<br />

and variable counter-torque on the shaft.<br />

Hence it is unsuitable for use with the torque measurement<br />

unit.<br />

Mechanically sealed stirrerhead<br />

• For use up to 350 °C<br />

• For vacuum and pressures up to 50 Bar at<br />

4 000 rpm.<br />

• See pages 62–67 for description<br />

This triple ball bearing stirrerhead is practically<br />

maintenance free. Years of use without maintenance<br />

are normal. Pressure has no effect on the shaft<br />

counter-torque. The counter-torque varies from<br />

0.2 Nm at 100 rpm to 0.9 Nm at 4 000 rpm.<br />

Magnetically coupled stirrerhead<br />

• For use up to 350 °C<br />

• For vacuum and pressures up to 50 Bar (special<br />

versions available for up to 150 Bar 1 600 rpm)<br />

• See pages 68–75 for description<br />

This stirrerhead has a static seal. No gasket comes<br />

into contact with moving parts. Pressure has no effect<br />

on the shaft counter-torque. The counter-torque<br />

varies from 0.2 Nm at 100 rpm to 1.5 Nm at 1 500 rpm.<br />

Inertgas<br />

or<br />

oder vacuum Vakuum<br />

56

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